Arrhenius plots for the isothermal degradation of poly(acrylic acid) in
air over the temperature range of 105 to 175C. The plotted ln(k1) versus 1/T
(filled circles) and ln(k2) versus 1/T (open circles) data were determined by
fitting the experimental DP data to eq. (1). The solid lines are the linear
regression fits to the data in each case.